PoetryTour/Assets/Scripts/Typewriter.cs

using System;
using UnityEngine;
using System.Collections;
using System.Text;
using Unity.VisualScripting;
using UnityEngine.UI;

public class Typewriter : MonoBehaviour
{
    /// <summary>
    /// 打字速度 
    /// </summary>
    public float TypeSpeed = 0.2f;

    public Text Showtext;

    /// <summary>
    /// 文本内容字符串
    /// </summary>
    public string StringContent = "";

    /// <summary>
    /// 当前文字位置（当前的最后一个字）
    /// </summary>
    private int curPos;


    public bool IsOver;

    void Awake()
    {
        Showtext = this.GetComponent<Text>();
        IsOver = true;
    }

    private void Start()
    {
    }


    /// <summary>
    /// 设置内容
    /// </summary>
    [ContextMenu("SetContent")]
    public void SetContent()
    {
        if (StringContent.Length == 0)
        {
            StringContent = Showtext.text;
        }
        curPos = 0;
        Showtext.text = string.Empty;
        InvokeRepeating("Typing", 0, TypeSpeed);
        IsOver = false;
    }

    public void Pause()
    {
        CancelInvoke("Typing");
    }

    void Typing()
    {
        if (StringContent.Length - 1 == curPos) //如果当前字符位置等于字符总长度前一个位置就停止调用打字方法
        {
            CancelInvoke("Typing");
            IsOver = true;
        }


        // ASCIIEncoding ascii = new ASCIIEncoding();
        //
        // int tempLen = 0;
        //
        // byte[] s = ascii.GetBytes(StringContent.Substring(curPos, 1));
        //
        // for (int i = 0; i < s.Length; i++)
        // {
        //     if (s[i] == 63)
        //     {
        //         tempLen += 2;
        //     }
        //     else
        //     {
        //         tempLen += 1;
        //     }
        // }
        //
        // if (tempLen == 2)
        // {
        //     curPos++;
        //     return;
        // }

        if (curPos < StringContent.Length)
        {
            Showtext.text += StringContent.Substring(curPos, 1); //每次都截取到当前位置的下一个字符位置
            curPos++;
        }
    }
}